/**
 * Copyright 2006-2015 the original author or authors.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.mybatis.generator.codegen.mybatis3.xmlmapper.elements;

import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.dom.xml.Attribute;
import org.mybatis.generator.api.dom.xml.TextElement;
import org.mybatis.generator.api.dom.xml.XmlElement;
import org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities;

import java.util.List;

/**
 * @author Jeff Butler
 */
public class BatchDeleteElementGenerator extends AbstractXmlElementGenerator {

    public BatchDeleteElementGenerator(boolean isSimple) {
        super();
    }

    @Override
    public void addElements(XmlElement parentElement) {
        XmlElement answer = new XmlElement("delete"); //$NON-NLS-1$

        answer.addAttribute(new Attribute("id", "batchRemove")); //$NON-NLS-1$
        answer.addAttribute(new Attribute("parameterType", //$NON-NLS-1$
                List.class.getName()));

        context.getCommentGenerator().addComment(answer);

        StringBuilder sb = new StringBuilder();
        sb.append("update "); //$NON-NLS-1$
        sb.append(introspectedTable.getFullyQualifiedTableNameAtRuntime());
        sb.append(" set deleted = 1 ");
        answer.addElement(new TextElement(sb.toString()));

        IntrospectedColumn introspectedColumn = introspectedTable.getPrimaryKeyColumns().get(0);

        sb.setLength(0);
        sb.append("where ");
        sb.append(MyBatis3FormattingUtilities.getEscapedColumnName(introspectedColumn));
        sb.append(" in (");
        answer.addElement(new TextElement(sb.toString()));

        XmlElement foreachElement = new XmlElement("foreach");
        foreachElement.addAttribute(new Attribute("collection", "list"));
        foreachElement.addAttribute(new Attribute("item", "item"));
        foreachElement.addAttribute(new Attribute("separator", ","));
        foreachElement.addElement(new TextElement("#{item}"));
        answer.addElement(foreachElement);

        sb.setLength(0);
        sb.append(")");
        answer.addElement(new TextElement(sb.toString()));

        if (context.getPlugins().sqlMapDeleteByPrimaryKeyElementGenerated(answer, introspectedTable)) {
            parentElement.addElement(answer);
        }
    }

}
